Device for changing rolls of paper.



B. G. ROBESON.

DBVIGE FOR CHANGING ROLLS OF PAPER.

AYILIUATION FILED MAY 1, 1911. s i g ggg :39, Patented May 14, 1912.

2 SHEETS-SHEET l.

Inventor Attorneys E. G. ROBBSON.

DEVICE FOR CHANGING ROLLS OF PAPER.

APPLICATION FILED MAY 1, 1911,

1,026,369. Patented May 14, 1912.

2 SHEETS-SHEET Z.

f Wit esses i n f ntor by 1 v I Attorneys 2 being provided, intermediate their EDNA G. ROBESON, OF ATLANTA, GEORGIA.

DEVICE FOR CHANGING ROLLS OF PAPER.

fihcification of Letters Patent.

Patented May 14, 1912.

Application filed May 1, 1911. Serial No. 624,347.

1'0 on whom it may concern:

Be it knonwn that I, EDNA G. ROBESON, :1 citizen of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, have invented a new and useful Device for Changing Rolls of Paper, of which the following is a specification.

The device forming the subject matter of this patent, is adapted to be employed for replacing an empty roll by a full roll, upon printingpresses, and upon machinery employed in the cotton mills and woolen mills, and elsewhere, where a long, of paper, cloth or the like, is employed in a mechanical process.

It is the object of this invention to provide a mechanism whereby the advancement of the full roll, to replace the empty roll, will serve to elevate the empty roll, so that the full roll will be advanced there beneath, to replace the empty roll.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described andclaimed, it being understood that changes in the recise embodiment of invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings: Fi ure 1 is a side elevation; Fig. 2 is-an em? elevation Fig. 3 is a side elevation of the primary lever; and Fig. 4 is a side elevation of .the secondary lever.

Presn/pposing,without prejudice, that the device is to-be employed upon a printing press, the numeral ,1 may be take 'to indicate a portion of the frame of a Gross printing press, t e numeral. 2 indicating brackets outstanding ffi-om the frame 1, the bra'ckgts en s, with depending extensions 3.

Theinv'ention further includes a primary lever! and a secondary lever 5, the primary lever 45 being shown in detailin Fi 3, and the secondary lever5 being shown in detail in Fig. 4. The primary/lever} consists of angularly disposed segments '6 and 7, the

segment 7 terminating "in spaced fingers 8,

these fingers constituting, as will be seen hereinafter, a rell actuator. The primary lever 4 isfulcrumed as shown at 9, to the lower extremity of the extension 3, between rolled up strip 'positely disposed brackets 2,

the ends of the segment 6 of the lei'er. Upstanding from the segment 6 of the primary lever, is an angularly disposed finger 10.

The secondary lever 5 consists of angularly disposed segments 11 and 12, the secondary lever being fulcrumed, as shown at 14, to the lower portion of the bracket 2, above, and slightly to one side of the fulcrum point 9 of the primary lever 4, the secondary lever 5 being fulcrumed adjacent the end of the segment 12. From the intermediate portion of the segment 12 of the secondary lever, a finger 15 outstands', this finger be-. ing extended across the finger 10 of the primary lever 4. U on the finger 10 of the primary lever 4 t ere is journaled for r0 tation an anti-friction device 16, preferably a roller, this anti-friction vdevice being adapted to bear upon, and to ride along, the upper edge of the finger 15 of the secondary lever. To the extremity of the segment 11 of the secondaryv lever 5, a hook 17 is pivoted, this hook l7 constituting, as will be understood, a rail actuator.

It will be understood, from an. examination of Fig. 2, that the construction above outlined is duplicated, there being a pair of opand a primary lever 4 and a secondary lever 5 upon each bracket. The extremities of the segments 6 of the rimary levers 4 are connected by a bar 18,. so that the two duplicated mechanisms may work together. Bar 18 should be keyed or rigidly mounted on primary lever 4 and mounted with axis concentric with fulcrum 9.

Referring to Fig. 1, it will be seen that the fingers 8 of the primary lever 4 normally upstand slightly above the upper edge of the bracket 2, adjacent the free end of the bracket, the roll-actuators 17 being disposed to conform to location of roll shaft bearings.

Theroll from' which the material has been removed, is denoted by the numeral 20, this roll being suitably journaled upon the brackets 2, adjacent the frame 1. The full roll 19 rests, upon the brackets 2, adjacent the free ends of the brackets, and-between theflfingers 8.

Let it be supposed that in practical operation, it is desired to remove the roll20 from its position adjacent the frame 1, to replace this empty roll by the full roll 19. The full roll 19 is trundled manually in the direction of the arrow X, along the upper edges of the brackets 2, these brackets therefore acting as a track. When the r0112 is thus moved in the direction of the arrow X, the 5 fingers 8 will be engaged by the shaft of the roll, tilting the primary lever 4. When the primary lever 4 is thus tilted, the roller 16 which is carried by the primary lever, will ride along the edge of the finger 15 of the secondary lever, tilting the secondary lever, and elevating the segment 11 thereof. When the segment 11 of the secondary lever is thus elevated, the hooks 17 will engage the ends of the roll 20, elevating the roll 20 to such a height that the full roll 19 may pass under the empty roll, and assume the position previously occupied by the empty roll. The empty roll is removed from the hooks 17 by the mechanism commonly employed for that purpose upon a Goss press, pre-supposing that the structure is employed upon such a machine. When the segment 11 of the secondary lever is elevated, as hereinbefore -described, the centers of gravity of the parts will be. so disposed that the segment 11 and the empty roll 20 will remain in elevated position until the parts are restored, manually, to the positions shown in Fig. 1. When the parts are thus restored, the rollholding hooks 17 will drop automatically into such positions that when the segments 11 of the secondary levers are again elevated, the hooks will engage the empty roll 20, and repeat the operation.

From the foregoing it will be seen that two interengaged lovers of the first order are provided, the same'having roll-actuators at their ends moving in arcs of diil'erent radii, so that one roll-holder may be elevated above the other, the movement of one lever, together with the full roll-holder, serving to actuate the other lever, together with .the empty roll-holder. Thus, in a single operation, the shifting of the rolls may be effected, with a minimum loss of time.

It is to be noted that the roll-holder-embracing the fingers 8, has two separate movements. These fingers move in an arc of which the fulcrum point 9 is a center. At the same time, owing to the length of the fingers, thismovement of lever 4 about fulcrum 9 is accom lished b force exerted manually in the direction arrow X upon shaft of the roll engaged by fingers 8, the resultant movement of the roll being in a right line in the direction of arrow X. The rollactuator 17 moves in an arc'of which the fulcrum oint 14 is-a center, the roll-actuator 17 t 11s moving intoa position above the roll-actuator 8. Likewise, it is to be noted that the levers t and have spaced fulcrum points, ermitting the actuators 8' and 17 to have t e requisite relative move: ment. The ascending movement of the rolli actuator 17 with res t to the roll-actuator 8, obviously takes place, moreover, by reason of the fact that. the two roll-actuators swing upon arcs of diiferent radii.

Having thus described the invention what is claimed is:

1. In a device for replacing an empty roll by a full roll, a track; roll-actuators above the track; and interengaging means 'supporting the roll actuators, for moving them in opposite directions, in the direction of the length of the track}, and for elevating one roll actuator above the otheff" 2. In a device for replacing an empty roll by a full roll, a track; roll-actuators above the track; and inter-engaging means supporting the roll-actuators, for moving one. roll-actuator in a right line along the track in one direction, and for moving the other roll-actuator in an opposite direction, in an are above the first named roll-actuator.

3., In ardevice for replacing an empty roll by a full .roll, levers; means for supporting the levers; a roll-actuator upon each lever;

and interengaging means upon the levers for. operating them simultaneously, and for moving the, roll-actuators in opposite diregions, to replace an empty roll by a full ro 4. In a device for replacing an empty roll by a full roll, levers; means for so porting $5 the levers; a roll-actuator upon eac lever; and intercngaging means upon the levers for operating them simultaneously, and for elevating one roll actuator above the other roll-actuator. i

5. In a device for replacing an empty roll by a full roll, levers interengaged for simultaneous operation, each lever having a rollactuator, one roll-actuator operating in a fixed plane, and the other roll-actuator rismg above and in an opposite direction to, the first mentioned roll-actuator.

6. In a device for replacing an empty roll by a full roll, levers interengaged for simultaneous operation, each lever being pro- 11o. vided with a roll-actuator, one of the rollactuators being pivotally mounted for automatic engagement with the roll, and being movable in an opposite direction to the other roll-actuator, into, a position above 111.5,

said other roll-actuator.

7. In a device for replacing an empty roll by a full roll, levers interengag for simultaneous operation and having rollyactuators, one of which is adapted to rise above the other, the roll-actuators moving in opposite directions, the roll-actuator which r'ses above its fellow, consisting of a pivotaly mounted book.

8. In a device for replacing an empty roll 126 by a full roll, levers of the first class; means for fulcruming the levers at different re spective heights roll actuators upon the levers; and means for connecting the levers for simultaneous operation. 130

9. In a device for replacing an empty roll by a full roll, levers; roll-actuators upon the lovers; means for fulcruming the levers at different respective heights; and interengaging elements upon the levers for operating them simultaneously, and for elevating the actuator of. the empty roll above the actuator of the full 1'01 10. In a device for replacing an empty roll by a full roll, roll aetuators; means supporting the roll-eotuators, for moving them in arcs of diflerent radii, directions; upon said means simultaneously. 1

and in orggoeife mterengaging e ents for operating the same and In testimony that I claim the foregoing as my own, I have hereto afligzed my signature in the presence of two witnesses.

DNA G. ROBESON. Witnesses Wmm A. Monms, J. M. Rmcvns. 

